# Koteshwar Dam > Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Koteshwar_Dam > Markdown URL: https://mediated.wiki/source/Koteshwar_Dam.md > Source: https://en.wikipedia.org/wiki/Koteshwar_Dam > Source revision: 1324414066 > License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) Dam in New Tehri Koteshwar Dam Interactive map of Koteshwar Dam Country India Location New Tehri Coordinates 30°15′37″N 78°29′53″E / 30.26028°N 78.49806°E / 30.26028; 78.49806 Opening date 2011 Owner Tehri Hydro Development Corporation Dam and spillways Type of dam Gravity Height 97.5 m (320 ft) Length 300 m (984 ft) Elevation at crest 618.5 m (2,029 ft) Dam volume 560,000 m3 (732,452 cu yd) Spillway type Service, 4 x radial gate controlled Spillway capacity 13,240 m3/s (467,566 cu ft/s) Reservoir Total capacity 88,900,000 m3 (72,072 acre⋅ft) Active capacity 35,000,000 m3 (28,375 acre⋅ft) Catchment area 7,691 km2 (2,970 sq mi) Surface area 29 km2 (11 sq mi)[1] Normal elevation 612.5 m (2,010 ft) (full) Power Station Commission date 2011-2012 Hydraulic head 75 m (246 ft) (max) Turbines 4 x 100 MW Francis-type[2] Installed capacity 400 MW The **Koteshwar Dam** is a [gravity dam](/source/Gravity_dam) on the [Bhagirathi River](/source/Bhagirathi_River), located 22 km (14 mi) downstream of the [Tehri Dam](/source/Tehri_Dam) in [Tehri District](/source/Tehri_District), [Uttarakhand](/source/Uttarakhand), India. The dam is part of the Tehri Hydropower Complex and serves to regulate the Tehri Dam's tailrace for irrigation and to create the lower reservoir of the Tehri [Pumped Storage](/source/Pumped_Storage) Power Station. In addition, the dam has a 400 MW (4x100 MW) [run-of-the-river](/source/Run-of-the-river) power station.[3] The project was approved in 2000, and its first generator was commissioned on 27 March 2011, and the second on 30 March 2011. The construction site had been inundated in September 2010 by floods. The diversion tunnel was later blocked due to heaving/collapse of the hill in December 2010. The spillway was commissioned in Jan 2011.[4] The last two generators were made operational in March 2012.[5] ## Design The dam is 97.5 m (320 ft) tall and 300 m (984 ft) long. It has a structural volume of 560,000 m3 (732,452 cu yd) and its crest lies at an elevation of 618.5 m (2,029 ft) above sea level. The dam's [spillway](/source/Spillway) consists of four 18 m (59 ft) wide and 16 m (52 ft) tall [radial gates](/source/Radial_gate). When the reservoir is at flood level, the spillway has a discharge capacity of 13,240 m3/s (467,566 cu ft/s). Receiving water from [Tehri Dam](/source/Tehri_Dam) and collecting it from an overall 7,691 km2 (2,970 sq mi) [catchment area](/source/Drainage_basin), the dam creates a [reservoir](/source/Reservoir) with a 88,900,000 m3 (72,072 acre⋅ft) capacity, of which 35,000,000 m3 (28,375 acre⋅ft) is active (or "useful"). The reservoir's surface area is 29 km2 (11 sq mi) and at full pool, it lies at an elevation of 612.5 m (2,010 ft). The dam's power station is a run-of-the-river type and uses the active storage in the reservoir which can draw the lake down 30 m (98 ft) from full pool. The power house is located on the right bank of the river below the dam and contains 4 x 100 [MW](/source/Megawatt) [Francis turbine](/source/Francis_turbine)-generators. The height of the dam allows for a maximum 75 m (246 ft) of [hydraulic head](/source/Hydraulic_head).[1][2] ## See also - [Water portal](https://en.wikipedia.org/wiki/Portal:Water) - [Renewable energy portal](https://en.wikipedia.org/wiki/Portal:Renewable_energy) - [List of power stations in India](/source/List_of_power_stations_in_India) - [List of run-of-the-river hydroelectric power stations](/source/List_of_run-of-the-river_hydroelectric_power_stations) ## References 1. ^ [***a***](#cite_ref-COLD_1-0) [***b***](#cite_ref-COLD_1-1) ["India: National Register of Large Dams 2009"](https://web.archive.org/web/20110721165130/http://www.cwc.nic.in/main/downloads/National%20Register%20of%20Large%20Dams%202009.pdf) (PDF). Central Water Commission. Archived from [the original](http://www.cwc.nic.in/main/downloads/National%20Register%20of%20Large%20Dams%202009.pdf) (PDF) on 21 July 2011. Retrieved 14 August 2011. 1. ^ [***a***](#cite_ref-THDC_2-0) [***b***](#cite_ref-THDC_2-1) ["Features"](https://web.archive.org/web/20120330160818/http://thdc.gov.in/Projects/english/Scripts/Prj_Features.aspx?Vid=134). Tehri Hydro Development Corporation. Archived from [the original](http://thdc.gov.in/Projects/english/Scripts/Prj_Features.aspx?Vid=134) on 30 March 2012. Retrieved 14 August 2011. 1. **[^](#cite_ref-3)** ["Koteshwar Hydro Power Project"](https://web.archive.org/web/20111129081412/http://thdc.gov.in/Projects/English/Scripts/Prj_Introduction.aspx?vid=134). Tehri Hydro Development Corporation. Archived from [the original](http://thdc.gov.in/Projects/english/Scripts/Prj_Introduction.aspx?vid=134) on 29 November 2011. Retrieved 14 August 2011. 1. **[^](#cite_ref-4)** ["Koteshwar project was commissioned within six months of the crisis"](http://www.projectsinfo.in/News.aspx?nId=YIacyVRMo3z0COAiOMDhBA==). Projects Info. 18 April 2011. Retrieved 14 August 2011. 1. **[^](#cite_ref-5)** ["Projects:Current Status"](https://web.archive.org/web/20151006105938/http://thdc.gov.in/English/Scripts/Project_Smallhydro.aspx). Tehri Hydro Development Corporation. Archived from [the original](http://thdc.gov.in/English/Scripts/Project_Smallhydro.aspx) on 6 October 2015. Retrieved 14 August 2011. v t e Hydrography of Uttarakhand Rivers Alaknanda Bhagirathi Bhilangna Dhauliganga Ganges Gaula Goriganga Jadhganga Kosi Mandakini Nandakini Nandhaur Pindar Ramganga Rishiganga Saraswati Sarju Sharda Tons Yamuna Lakes Bhimtal Deoriatal Gaurikund Hemkund Kanatal Kedartal Nainital Naukuchiatal Roopkund Satopanthtal Sattal Glaciers Gangotri Kafni Kedarnath Pindari Satopanth Waterfalls Kempty Tiger Vasudhara Dams Bhali Dhauliganga Ichari Kishau Koteshwar Lakhwar Loharinag Pala Maneri Ramganga Tehri Tapovan Vishnugad Barrages Asan Bhimgoda Dakpathar Pashulok Bridges Janaki Setu Lakshman Jhula Ram Jhula Related topics Doab Ganges Basin Ganges Canal Gomukh Indo-Gangetic Plain --- Adapted from the Wikipedia article [Koteshwar Dam](https://en.wikipedia.org/wiki/Koteshwar_Dam) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Koteshwar_Dam?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.